SICK MCS100E, Руководство по эксплуатации

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Operation
MCS100E Operating Instructions 8009504/VYWA7/V3-1/2018-01 © SICK AG 83
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5.7.11.12
Temperatures and Pressure
Specialist : System edit: Temperatures and Pressure
The temperatures and the pressure correction managed by the system control are defined
in this menu option.
The heating controllers provide 12 bits (0 .. 4095 digits).
For default settings please refer to the status print-out in your system documentation.
Control function of heating controllers
The control function of the heating controllers is as follows:
• Temperature exceeding Hysteresis: Heating off
• Temperature lower than Hysteresis: Heating on
• Temperature lower than Actual Limit low:
Relay “ERROR” is set.
• If the temperature again exceeds this value, then:
Relay “ERROR” is reset.
• Temperature exceeding Actual value+Limit high:
Relays “ERROR” and ALARM are set.
• If the temperature again falls below this value, then:
Relay “ERROR” is reset; the relay “ALARM”, however, remains set. It must be reset by a
RESET.
The relays ERROR and ALARM are edited in Specialist: System edit: Zero/Calib/Purge
programs/other programs
.
For RESET of the alarms, the error message ER 32 ( Specialist: System edit: Zero/Calib/
Purge programs/other programs is used.
Figure 20 Switching thresholds of the temperature controllers
Changing the temperature affects the measurement operation and can cause
instrument damage.
185 °C
197 °C
190 °C
180 °C
173 °C
Limit
Hysteresis
Nominal (=set value)
Hysteresis
Limit
Heating off
ERROR and ALARM set ERROR reset
Heating on ERROR set ERROR reset
Example: Nominal = 185 °C
Hysteresis = 5 °C
Limit = 12 °C